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The 11th term in the armithmetic sequence 129 122 115 is?
The simplest and most obvious sequence is given by the formula: X[n]=136 - n*7 This gives X[11]=59.
What is the nth term for the sequence 18 10 2 -6 -14?
The simplest rule is Un = 26 - 8n for n = 1, 2, 3, ... but it is always possible to fit a polynomial of degree 5 to the given sequence of numbers along with any sixth number.
What is the term in sequence -13-9-5-1?
There are infinitely many possible answers. The simplest, linear, rule is Un = 4n - 17 for n = 1, 2, 3, ...
What are the next two decimals 100 100 10 1?
244 and 910. The simplest polynomial that fits the given sequence is t(n) = (57n3 - 432n2 + 897n - 322)/2 for n = 1, 2, 3, ... Neither a simple exponential nor power function will fit the sequence.
Does anybody know a sequence starting with 1 2 so that it has a quadratic nth term?
a0= 1 , a1=2, an= n2+1I'm sure there are more. This is the simplest one I could think of.
